A Study of Model T Frames Part 1

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Model T Ford Forum: Forum 2013: A Study of Model T Frames Part 1
Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:31 am:

I would like to share some rough drawings of Model T Frames I did back in the mid 1990s.

Note these are all Canadian Frames after #2500 (USA Frames) There will be some errors in my observations.

The first frame had no reinforcing fish plates inside. They were added after the handbrake quadrant was affixed to the frame. Sort of an after some failures in the earliest of T's

Some tie around the time the fish plates were added, the very front frame to front cross member bracket was changer to the later style with the foot and extra rivet.

Here is a part of the drawing of the first frame rail The cross section of the frame is very square in the radius and very thin.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:33 am:

Here is a photo of the unusual frame to front cross member bracket. Not real clear to see but is without the foot and extra rivet on each side. Kim Would have a better photo of this.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:37 am:

Some photos of a fish plate frame I once owned. Not the best of photos but you can see the thin-ness of the frame and square cross section. Although the handbrake quadrant has been removed, you can just make out the large holes in the fish plated that sit over the already fitted rivets for the quadrant.




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:41 am:

The rear internal corner brackets for the rear cross member were a very simple bent piece of steel with only 2 plains. (didn't have the third folded side). Photo not the best and some extra welding inside the frame.




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:51 am:

Here are the drawings. Most changes from one Frame model to the next are highlighted. Please remember, except for the first drawing, they are all Canadian




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 01:59 am:





All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:02 am:





All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:04 am:



All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:08 am:





All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:10 am:



All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:11 am:



All measurements are in metric and from front of frame.


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:16 am:




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:17 am:




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:19 am:




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:24 am:




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:27 am:

Note the change in length of the body bracket in this photo




Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 02:32 am:

Here's a photo of the last 3 styles of rear cross members





See part 2 for TT Frames


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Friday, April 19, 2013 - 03:27 am:

See A Study of Model T Frames Part 2

http://www.mtfca.com/discus/messages/331880/356628.html?1366355695


Top of pagePrevious messageNext messageBottom of page Link to this message  By Paul O'Neil on Friday, April 19, 2013 - 01:19 pm:

Thanks for posting this information. I hope there will be more such studies to help sort out the many changes made over the course of Model T production. Those of us who have mixmaster cars are looking to sort them out and find the bits to make the car as close as possible to the way it was as it left the factory. These studies will help, thank you!

Vintage Paul, mixmaster '23 Runabout


Top of pagePrevious messageNext messageBottom of page Link to this message  By Randy Driscoll on Friday, April 19, 2013 - 02:31 pm:

Thanks for the information Mark. That took considerable effort to compile all that information.
I discovered the gasoline tank was moved back 1/2" on USA made cars in 1913, but when I told the experts, they thought I was full of BS.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Friday, April 19, 2013 - 03:39 pm:

Mark,
Thank you very, very much! This will help me sorting out some of my cars and parts.
Drive carefully, and enjoy, W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gavin Harris (Napier, NZ) on Friday, April 19, 2013 - 06:56 pm:

this may also help, note that it is in draft form, I would apprieciate any corrections

application/pdfT frame chart
Model T Frame Identification Chart V2.pdf (37.1 k)


Top of pagePrevious messageNext messageBottom of page Link to this message  By mark herdman on Saturday, April 20, 2013 - 04:03 am:

nice work Gavin

Mark


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